This project implements a password entry system using Arduino, where users enter a 4-digit password via a keypad, and the entered password is displayed on an LCD. If the password matches the preset ...

Your LCD display should have 16 pins coming out from the bottom. To use this code you should download the Arduino IDE so you can load it onto your Arduino Uno. You ...

In this digital age, we come across LCDs all around us from simple calculators to smartphones, computers and television sets, etc. The LCDs use liquid crystals to produce images or texts and are ...

// C++ code // include the library code: #include // initialize the library with the numbers of the interface pins LiquidCrystal lcd(12, 11, 5, 4, 3, 2); int ultrasonic = 0; long ...

The pH scale is used to measure the acidity and basicity of a liquid. It can have readings ranging from 0-14, where 0 shows the most acidic liquid and 14 shows the most basic liquid. 7 pH is for ...

In many Arduino projects it is desirable or necessary to display information on an alphanumeric LCD panel: in the Arduino world this would normally be accomplished using a ‘shield’ (daughter board) ...